Home / 20,373,231-28,119,052.62-11,677,232.10

Finding the Fourth Proportional to 20,373,231, 28,119,052.62 and 11,677,232.10

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Solution

The fourth proportional to 20,373,231, 28,119,052.62 and 11,677,232.10 is: 16,116,869.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,373,231 : 28,119,052.62 = 11,677,232.10 : x
  2. Step 2: Convert to fraction form
    20,373,231/28,119,052.62 = 11,677,232.10/x
  3. Step 3: Cross multiply
    20,373,231x = 28,119,052.62 × 11,677,232.10
  4. Step 4: Simplify right side
    20,373,231x = 328,352,703,875,853.12
  5. Step 5: Solve for x
    x = 328,352,703,875,853.12/20,373,231
  6. Step 6: Final answer
    x = 16,116,869.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.